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[aprssig] Carry Ons

Scott Miller scott at opentrac.org
Tue Jan 8 17:29:21 UTC 2008


> On this trip I did get to see the x-ray monitor as a guitar in a case
> went through the machine.  I could see the woodgrain of the guitar and
> it in color!  Now explain to me how they can see the wood grain of a
> guitar in color.  After seeing that, I would imagine they can read the
> model number off of my handheld.

Varying material density.  And I'm not sure about airport x-ray 
machines, but I've seen x-ray pictures of devices where you could quite 
clearly see PCB traces and name plates.

Scott
N1VG





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